Source: cve@mitre.org
Cross-site scripting (XSS) vulnerability in the Inbox Search feature in Hybris Management Console (HMC) in SAP Hybris before 6.0 allows remote attackers to inject arbitrary web script or HTML via the itemsperpage parameter.
SAP Hybris Management Console (HMC) is vulnerable to a cross-site scripting (XSS) attack, allowing attackers to inject malicious code into the application. This vulnerability, stemming from improper input validation of the itemsperpage parameter in the Inbox Search feature, can lead to session hijacking, data theft, and website defacement. Successful exploitation requires no authentication, posing a significant risk to organizations using vulnerable Hybris installations.
Step 1: Payload Delivery: An attacker crafts a malicious URL containing a JavaScript payload within the itemsperpage parameter. For example: .../hmc/inbox/search?itemsperpage=<script>alert('XSS')</script>
Step 2: Request Submission: The attacker sends the crafted URL to a victim, potentially through phishing, social engineering, or other means.
Step 3: Server Processing: The Hybris server receives the request and processes the Inbox Search query, including the attacker-supplied itemsperpage value.
Step 4: HTML Generation: The server dynamically generates the HTML response for the search results, incorporating the attacker's itemsperpage value directly into the HTML without proper sanitization.
Step 5: Client-Side Execution: The victim's web browser receives the malicious HTML response. The injected JavaScript payload is executed by the browser when the page is rendered, leading to the attacker's code running in the context of the victim's session.
The vulnerability lies in the Hybris Management Console (HMC) Inbox Search feature's handling of the itemsperpage parameter. The application fails to properly sanitize user-supplied input before rendering it within the HTML response. Specifically, the application directly incorporates the value of the itemsperpage parameter into the HTML output without encoding or filtering potentially malicious characters. This allows an attacker to inject arbitrary JavaScript code, which is then executed by the victim's browser when they view the search results. The root cause is a lack of input validation and output encoding for the itemsperpage parameter, leading to a stored XSS vulnerability. The absence of proper contextual escaping further exacerbates the issue.
While no specific APT groups are directly linked to exploiting this particular CVE, the nature of XSS vulnerabilities makes them attractive to a wide range of attackers, including those seeking to steal credentials, deface websites, or launch further attacks. This vulnerability is not listed on the CISA KEV.
Web application firewall (WAF) logs showing suspicious HTTP requests containing JavaScript payloads in the itemsperpage parameter.
Network traffic analysis revealing unusual HTTP requests to the Hybris Management Console with potentially malicious payloads.
Server-side logs indicating unexpected behavior or errors related to the Inbox Search functionality.
Security Information and Event Management (SIEM) systems configured to detect XSS attempts based on signature matching or behavioral analysis.
Reviewing the HTML source code of the HMC search results for the presence of injected JavaScript code.
Upgrade to SAP Hybris version 6.0 or later, which includes a fix for this vulnerability.
Implement robust input validation to sanitize the itemsperpage parameter, ensuring that only expected data types and formats are accepted.
Employ output encoding (e.g., HTML encoding) to properly escape user-supplied input before rendering it in the HTML response.
Use a Content Security Policy (CSP) to restrict the execution of inline scripts and potentially mitigate the impact of XSS attacks.
Regularly scan the Hybris application for vulnerabilities using static and dynamic analysis tools.
Implement a Web Application Firewall (WAF) to filter malicious requests and block XSS attempts.
Conduct regular security audits and penetration testing to identify and address vulnerabilities.